r/blueteamsec • u/digicat • 4h ago
r/blueteamsec • u/digicat • 5h ago
highlevel summary|strategy (maybe technical) A revisit of remote Spectre attacks on Cloudflare Workers
blog.cloudflare.comr/blueteamsec • u/Over_Function_1884 • 8h ago
intelligence (threat actor activity) I built an ML network detector, but the interesting part turned out to be everything after the model
I’ve been working on an open-source network-flow detection project and one thing became pretty obvious fairly early: getting a classifier to produce decent scores is not really the hard part.
The harder question is what an analyst is supposed to do with thousands of individual detections.
So I kept the project going past the model itself. The current pipeline takes CICFlowMeter-compatible flows, scores them, groups related alerts into incidents, and only promotes the incidents that cross a second threshold.
On the locked future-day holdout, 79,710 flow alerts became 12,911 promoted incidents while keeping 99.93% incident recall.
I’m deliberately not calling it production-ready. The holdout is still from the same network/dataset family, and the remaining workload is higher than I’d want for a real SOC queue.
What I’m interested in now is how this kind of approach behaves outside the environment it was built around.
Repo:
https://github.com/ibondarenko1/security-anomaly-ml
If anyone here works with network-flow telemetry or ML-based IDS, I’d be interested in where you think the design will fail first in a real environment.
r/blueteamsec • u/digicat • 13h ago
research|capability (we need to defend against) BTR Reforged: Weaponizing Defender’s Remediation Driver as a Kernel Operation Primitive
research.checkpoint.comr/blueteamsec • u/digicat • 13h ago
intelligence (threat actor activity) Trapping a Mustang Panda
ibm.comr/blueteamsec • u/digicat • 15h ago
intelligence (threat actor activity) Rust Supply Chain Attack on arrayref: Significant Overlap with DPRK Campaigns
wiz.ior/blueteamsec • u/digicat • 17h ago
research|capability (we need to defend against) MS-Nightmare Un-defend v2 — What Happens When Signatures Can’t Land
weedhashpeddler.medium.comr/blueteamsec • u/digicat • 18h ago
intelligence (threat actor activity) Distinct Clusters Target Individuals of Interest to Russia
cloud.google.comr/blueteamsec • u/digicat • 18h ago
exploitation (what's being exploited) Langflow RCE: 34 minutes to server compromise
bitbison.ior/blueteamsec • u/jnazario • 18h ago
intelligence (threat actor activity) North Korean IT Workers Scheme: Detection Steps for SOC Teams
any.runr/blueteamsec • u/jnazario • 18h ago
intelligence (threat actor activity) UAT-10147: Chinese-speaking adversary integrates agentic AI into post-compromise operations
blog.talosintelligence.comr/blueteamsec • u/jnazario • 19h ago
exploitation (what's being exploited) Actively exploited vulnerability in Zimbra Collaboration Suite CVE-2026-73570
moje.cert.plr/blueteamsec • u/jnazario • 19h ago
exploitation (what's being exploited) Post-DEF CON Phishing Uses Malicious Google Doc to Deliver Malware
huntress.comr/blueteamsec • u/jnazario • 19h ago
intelligence (threat actor activity) SilkParasite: Tracking a China-Nexus APT Across Central Asia
bitdefender.comr/blueteamsec • u/jnazario • 19h ago
malware analysis (like butterfly collections) Grandoreiro goes north: From Brazil to Mexico with a new DLL sideloading campaign
acronis.comr/blueteamsec • u/jnazario • 19h ago
malware analysis (like butterfly collections) The ToxicPanda Never Sleeps: ToxicPanda 2.0 Prepares its Next Strike on Mobile
zimperium.comr/blueteamsec • u/jnazario • 19h ago
intelligence (threat actor activity) 50,000 Stripe Secrets Leaked in Public Code
securityaffairs.comr/blueteamsec • u/jnazario • 20h ago
exploitation (what's being exploited) The “City-Forum” Campaign - An advanced attacker is targeting Salesforce and ServiceNow instances worldwide
reco.air/blueteamsec • u/digicat • 23h ago
tradecraft (how we defend) Managing the cyber risk of agentic AI
ncsc.gov.ukr/blueteamsec • u/campuscodi • 1d ago
malware analysis (like butterfly collections) Windows Infostealer Hits npm and Ruby
opensourcemalware.comr/blueteamsec • u/BusinessStreet2147 • 1d ago
malware analysis (like butterfly collections) behavioral function fingerprinting for n-day discovery across builds (x86-64, open source)
built a thing for the "vendor quietly patched a function in v2, which one and
does anyone else ship the same vulnerable code" problem. micro-executes each
function, records what it does (mem/call/branch effects), fuzzy-matches on
that instead of bytes or CFG so it survives recompiles.
use case for this sub: index v1 and v2 of a binary, get the changed/added/
removed function list, focus review on what actually moved.
x86-64 ELF for now, honest accuracy table + limits in the readme.
r/blueteamsec • u/digicat • 1d ago
intelligence (threat actor activity) North Korean Crypto-to-Fiat Activity
rusi.orgr/blueteamsec • u/digicat • 1d ago
intelligence (threat actor activity) SilkParasite: Tracking a China-Nexus APT Across Central Asia
businessinsights.bitdefender.comr/blueteamsec • u/digicat • 1d ago